more than half say healthcare costs are hurting their operating environment. "a lot." as for the positive impact of the law, none. nada. not one of the owners surveyed said healthcare costs were helping business a lot. concerns. look at the other top as you see, top of the list, those health issues. next taxes on small businesses. again, a majority indicate they are hurting business a great deal. rounding out the top five worries the price of energy, government regulations and the federal debt ceiling. in a separate questionnaire, owners flagged concerns for not hiring. 6 out of 10 said again wore areries about the potential cost of healthcare but three other reasons for not adding workers topped that. the reasons they gave, 81% said they do not need additional help. three quarters blamed revenues and sales. and two thirds point to worries about the overall u.s. economy. that said, there are some bright spots in the survey. overall, u.s. small biz owners optimistic with their environment this month. the small business index jumped to a positive number plus nine after p